Firefox Community Forum

I'm experiencing a strange issue with Firefox. Some websites are not loading properly, including my own website, YT Thumbnails. In some cases, pages load partially, while other times they remain stuck loading or display missing content.

I've tried refreshing the pages, clearing the cache, and restarting the browser, but the problem still persists.

Has anyone encountered a similar issue in Firefox? Could this be related to browser settings, DNS, extensions, or network configuration?

Any help would be appreciated. Thanks!

I have to reset Firefox/Mozilla as my default browser every time I leave the browser and return. Each time I set it as my default browser, but I have to do it again and again. This is a new occurrence, as I have never had to do this until the last few weeks.

I really need some quality advice and will sincerely appreciate it if someone can guide me, because my head is spinning.

David

Since Thursday (new update rolled out Wednesday) I have lost all of my open tabs in one window.

Previously, when opening up Firefox, it would reopen my previous window with all tabs.

However now, even with the setting ticked in General (Startup --> Open Previous Windows & Tabs), it no longer does this. I have to go to Menu in the top right, History, recently closed windows, then guess at which window I should reopen.

Will this be fixed in the next update?

When I click to fill in a Credit Card field to pay for something, my correct card info appears momentarily, but then disappears. To execute a payment, I am forced to manually fill in all required information. I made sure the "save autofill" box was properly checked in the Settings, and it was. Names, addressed, etc. are all filled in properly; only credit card info is not.

For a while firefox has been having issues where on youtube in particular when tabs are closed they will continue to play audio for a bit after they are closed. More recently I have closed tabs and the audio keeps on going indefinitely after the tab has been closed. This is on the latest firefox (151.0.4 64 bit) on windows 11.

This only seems to happen with youtube and in general youtube playback is buggy, slow, and lags the whole browser taking several seconds to switch tabs to or from a youtube tab or even close it.

Content Security policy blocks essential scripts no matter what I do.

It's new Firefox installation, Troubleshoot mode, Enhanced tracking disabled, I'm not on VPN, can log into X.com in another browser just fine.

It's the reason #1 I don't use Firefox. I thought the issue would be fixed but it has been like this for long time.

Yet whatever I do, whatever I turn off this pops up:

Content-Security-Policy: The page’s settings blocked the loading of a resource (default-src) at https://abs.twimg.com/responsive-web/client-web/bundle.Conversation.721fc4aa.js because it violates the following directive: “default-src 'self'”

The screenshot is from Zen, but it uses Firefox and the issue is the same in Firefox.

Over the past week or so, I've been finding that Youtube videos don't start from the very beginning - the very opening is missing.

So as examples, you're playing a song that you know starts directly on a beat, but that first beat gets missed, or there will be an opening sentence such as "Everybody is talking about the latest... " and what you hear is more like "Vrybody" - you can clearly hear that It's slightly off.

This relates to Firefox in three ways.

My initial thought was that there is some conflict with using an Adblocker (uBlock in my case) as Youtube is trying to force a pre-video ad that won't play, but even with the adblocker disabled the problem persists.

I then cleared my Firefox Youtube history so it loads as a completely fresh version - but the problem is still there.

Finally, I tried the same video on Chrome to see if this is definitely a Youtube issue...and it plays correctly without a problem.

Therefore, the problem seems confined to Firefox but I am unsure where - what setting needs to get tweaked to sort this out?

In Firefox, a lot of my pages are not loading at all...the tab just shows that the website page is loading but it never does. The menus of the website will appear, but pages are not loading. This is not happening in MS Edge. I prefer Firefox, but lately have had to go to MS Edge to load pages. What could be happening?

It seems that after a recent Firefox version update (perhaps to 151.0.3), the "Clear cookies and site data" option is disabled for any container tab. This is really annoying as I like to use this feature often.

no matter what website when i put on a video it fades between normal and black constantly i dont know if its my computer im not very good at tech it doesnt happen and never happened on google

Recently, I've noticed that, when I Google something, and it shows those AI-created drop-down options (highlit on the screenshot), clicking on the drop down arrow does nothing; no error, no "dropping down", nothing.

Firefox 151.0.1 64 bit for Arch Linux I am trying to create a desktop app from a website - the ai is saying if there is no + sign in the url box then try More Tools -> Create Shortcut but there is no Create shortcut there. So how to create a desktop app from a website?

I have installed Firefox's free VPN. It shows in the toolbar, as a grey X and a grey "VPN". When I click that, I receive a series of promising, colorful dialog boxes that ultimately change nothing. I can only click the grey VPN and run through the same cycle again with the same results (opening yet a new tab). I have looked in Extensions and Themes > Manage Your Extensions, and can't find the VPN. How do I turn it on?

Estoy observando un comportamiento específico en Firefox que no logro reproducir en otros navegadores basados en Chromium.

Escenario de prueba:

Sitio web con un visor panorámico personalizado. Imágenes panorámicas de aproximadamente 4.500 px de ancho. Movimiento horizontal continuo y lento. Sin reproducción de video ni elementos pesados adicionales.

Resultados observados:

En Chrome, Edge, Brave y Opera el desplazamiento es fluido desde el primer instante. En Firefox el desplazamiento comienza con pequeños tirones o saltos visibles. Los tirones disminuyen progresivamente y desaparecen después de aproximadamente 4 a 12 segundos, dependiendo de la cantidad de panorámicas activas. Una vez estabilizado, el movimiento es completamente fluido. El comportamiento se reproduce incluso utilizando una sola imagen panorámica. Si existen varias panorámicas, el síntoma vuelve a aparecer cada vez que una nueva imagen entra en pantalla.

Pruebas realizadas:

Se descartó que el problema estuviera relacionado con transiciones entre imágenes. Se descartó que estuviera relacionado con programación o temporizadores. Se probó con una sola imagen activa. Se probó utilizando distintos métodos de desplazamiento. El comportamiento sigue siendo exclusivo de Firefox.

La impresión es que Firefox requiere algunos segundos para estabilizar el renderizado o la decodificación de imágenes panorámicas anchas antes de alcanzar una animación completamente fluida.

¿Existe alguna recomendación específica para animaciones panorámicas continuas de gran ancho en Firefox?

I'm unable to type in "Notes" for specific transactions on my Credit Union's web site. It used to work fine until several months ago. The entire Credit Union web site won't allow me to add info or type in a box provided by them for such purposes as it did. I have to use the Safari browser (which I hate using) to do so. HELP!!